// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * @assertion Let e be a constant object expression of the form
 * const T.id(a1, ..., an, xn+1: an+1, ..., xn+k: an+k) or the form
 * const T(a1, ..., an, xn+1: an+1, ..., xn+k: an+k). It is a compile-time
 * error if ai, 1 < = i <= n + k, is not a compile-time constant expression.
 * @description Checks that it is a compile-time error if any named arguments
 * of a constant object expression are not compile-time constants.
 * @compile-error
 * @author msyabro
 */

class  T {
  const T(p1, {p2, p3});
}

main() {
  int i = 2;
  const T(1, p2: i, p3: [0, 1]);
}
